<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri, sans-serif; "><div><div><div>Hi,</div></div></div><div><br></div><div>This is driving me nuts. </div><div>I have a Cisco CME (a few actually) where I cannot get DTMF to work.</div><div><br></div><div>Does someone happen to have the magic recipe of SIP/Dialplan profiles and Cisco config to make DTMF <relay> work?</div><div><br></div><div>I spent several very very painful days trying to get RFC2833 to work, using FS to try and generate the tones itself. I ended up with all sorts of codec mismatches, delay,distortion and some really mangled DTMF tones…</div><div><br></div><div>So, now I'm back to;</div><div><br></div><div>PSTN----CiscoGW----<external>----FS----<internal>----<CUST PABX>---Phone</div><div><br></div><div>Where <CUST PABX> is 3 CMEs that won't talk DTMF</div><div>30+ other vendor's gateway's that WILL do DTMF…</div><div><br></div><div>Context External and internal are both set to dtmf-type info (or dtmf_type info) </div><div><br></div><div>DTMF works FROM the Cisco GW towards our network, doesn't </div><div><br></div><div><br></div><div>So, does anyone have a magic solution?</div><div> Because Cisco TAC say they see DTMF being sent (as rtp-nte), when I need INFO or in-band.</div><div><br></div><div><br></div><div><br></div><div>Thanks,</div><div>Mike</div></body></html>